Vaporizer



1. MCC. SELDEN.

VAPORIZER.

APPLICATION FILED MAR. I5. 1918.

Patented Nov. 2, 1920.

3 SHEETS-SHEET I.

j. MCC. SELDEN.

vAPomzER- APPLICATION FiLED MAR. l5. 1918. 1,357,525. Patented Nov. 2, 1920.

3 SHEETS-SHEET 2.

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" @Honnl' J. MCC. SELDEN.

VAPORIZER.

APPLICATION FILED MAR.15\ 191B.

Patented Nov.- 2,1920.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

JAMES MQCOBB SELDEN, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO THE SELDEN COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORE'ORATION OF PENNSYLVANIA.

VAPORIZER.

Specification of Letters Patent.

Patented Nov. 2,1920.

Application lled March 15, 1918. Serial No. 222,736.

T 0 all w 710m t may concern:

Be it known that I, JAMES MoCoBB SEL- DEN a citizen of the United States, residing at littsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Vaporizers, of which the following is a specification.

The present invention relates to vaporizing apparatus, particularly useful in connection with certain chemical processes, such as the saturation of an oxygen-containing, or other gas with the vapors of substances,

as naphthalene, anthracene, phenanthrene,v

toluene ,and the like. It may also be utilized for the purposes of separation by other methods, as in the production at different periods of substances that are respectively volatilized under different conditions.

In the accompanying drawings,

Figure 1 is a longitudinal sectional view through one embodiment of the invention.

Fig. 2 is a horizontal sectional view on the line 2-2 of Fig. 1,

Fig. 3 is a plan view of the casing structure, with the cover removed,

Fig. 4 is a cross sectional view,

Fig. 5 is a detail view on'an enlarged scale, showing the joint between the cover and casing.

Similar reference numerals designate eorresponding parts in all the figures of the drawings.

In the embodiment disclosed, a container is employed including a body casing, preferably of sheet metal, and having a bottom 6 with side walls 7 and end walls 8. A baille plate or partition 9 extends across the casing, being suitably secured to the side walls 7, said baile terminating short of the bottom. The walls 7 and 8 and the baiile 9 are provided on their inner ends and at their upper margins with flanged strips 10 forming a groove 11, in which is placed a suitable packing 12.

A cover 13 for the casing is employed, and is provided at its edges with angle irons le, forming depending flanges 15 that en gage in the grooves and rest upon the packing, thus forming the joints. The cover 13 is relatively `heavy and may be provided at its ends or at any suitable points with rings 16, or other devices, to which may be fastened elevating cables 17 that can be attached to a crane or other mechanism for lifting the cover.

The gas, which constitutes a vehicle for the vapors, is introduced into the casing through a conduit 18 passing through one of the end walls 8, and having a downwardly extending portion 19 connected to a loop 2O located on the bottom 6 of the easing, and disposed contiguous to the side walls, as will be clear by reference to Figs. 2 and 3. The delivery end of this conduit is upturned, as shown at 21, being preferably located in one corner of the casing contiguous to the end wall through which the conduit enters said casing. It is'thus between said end wall and the baffle 9. The outlet for the vapors or vapor-laden gases is shown at 22, and is in the end wall 8 opposite to that through which the supply conduit 18 passes.

Suitable means for determining the amount of material admitted to the casing is preferably employed, said means being shown in the form of a float 23 carrying a stem 24 slidably mounted in the cover, as shown at 25. One or more wells 26 for receiving thermometers may also be provided.

In addition means are employed for cireu` lating the material while being vaporized. To this end a horizontal conduit 27 is provided normally disposed in the lower, portion of the casing, and having an open inlet end 28 and an upturned end 29 slotted, as shown at 30, and also open. This conduit is suspended from the coverl by suitable straps 31, or otherrdevices. A propeller 32 is located in the upturned end 29 of the conduit, and is carried by a shaft 33 journaled as illustrated at 34 in the cover, and having a pulley 35 on its exposed end. This pulley, as will be readily understood, is arranged to receive av driving belt operated by any suitable mechanism. A feeding funnel 36 is also preferably employed, said funnel being supported by the cover projecting through the same into the lower portion of the casing.

With this structure, it will be evident that the gas constituting the vehicle for the vapors, as well as the vaporizing medium, will be introduced through the pipe 18, and said gas passing beneath the surface of the material will be delivered into the'casing behind the baffle 9. It will traverse the casing, and finally escape through the outlet 22. By

reason of the coil or loop 20, the gas and material will be caused to have substantially the sameltemperature, and theY vaporizing action can be'secured by heat; either the gas lbeingpreheated or the container can be heated, as desired. It will be noted that the agitator and all the instruments are supported by the cover', so that when said cover is elevated, the entire interior of the casing is Aexposed and unobstructed. ThisV appa z tus may be employed in other ways. F or example, the material to be acted upon Vmay be placed in the container andfheated to a temperature between the melting and boiling points, depending upon the nature of the material. The current of gas is led overV the molten material in the container, and thereby becomes saturated with the vapor from the material. The gas stream'is then conveyed from the container Vinto a vsuitable condensing chamber.

lFrom the. foregoing, it is thoughtthat the construction, operation and many advanf tages of the herein described invention will be apparent to those skilled in the art, without further'description, and it will be understood that various'changes in the size, shape,

proportion and minor details vof construction, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention. Y

Y Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

Vl. In apparatus of the character set forth, the combination with a casing, of means connected to the casing for passing a vaporizing gas through the same, a removable cover for the casing, a conduitV in the casing having lopenV ends at different elevations'within said casingV and adapted to enter the material placed in the casing, means suspending the conduit from the cover to permit the'removal of both together, and a propeller supported on the cover and operating in ,the conduit andldriving means for Vpropeller projecting from the cover, said Y propeller and driving means being removable with the cover. Y

2. In apparatus of the character set forth, the, combination with a container for the material to be vaporized, comprising a body and a cover removably mounted thereon, of

Vmeans for removing the cover ,from the body, means connected to the body for supplying a gaseous vehicle thereto, means connected to the body for carrying off the vapor laden gaseous vehicle, a conduit in the body having angularly disposed portions, one of .which is upstanding, hangers that suspend the conduit from the cover and cause its rcmoval therewith, a propeller located in the upstanding portion of the conduit, and a driving shaft forthe propeller journaled in the cover and having itsupper end disposed above the same.

3. In apparatus of the character set forth, the combination withra casing body having an open top, of a removable cover for the open top, means connected to the body for introducing a gaseous vehicle thereto and for carrying off the vapor-laden gases, baffle across the body, means for introducing a4 gaseous vehicle into the casing body on one side of the baille plate, means for carrying olf the vapor-laden gases from vthe body on the opposite side ofthe plate, a cover removably mounted on the body, means providing a gas-seal between the Vcover and body and between thecover and baliie plate, and agitating means suspended from and removable with the cover, said agitating means being located on one side of the baffle plate and including an operating device projecting above the cover. n Y

In testimony whereof I afiix my signature in the presence of two witnesses.

JAMES MGCOBB SELDEN.

TWitnesses: I Y

WM. A. IRWIN, W.V K. LANGFELT.

yable Vwith said cover withouty interference l 

